GDC Awarded St. Patrick’s Church Historical Slate Roof restoration by Catholic DiocesesJohn Greene GDCFeb 5, 20251 min readGDC Slate awarded Slate & copper maintenance of historical Slate roof on St Patrick’s Church Nashua NH Awarded 2025
GDC Slate & Copper Awarded Slate & Copper historical Restoration of Whipple Hall Town of New London NH 2026
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